... So, it sounds like the original analog tape was degraded, so he used a 192 kHz digital source instead. But what would have happened if he just used a regular CD of the type that you can order from amazon? Would there have been any disadvantage?
The CD would contain the mastering choices made by the original mastering engineer when transferring to CD, whereas the 24/192 source would be more faithful to the original tape and be a better starting point for the remaster.